CN216620906U - Measuring tool for rapidly testing high-locking bolt - Google Patents

Abstract

The utility model belongs to the technical field of quality inspection, and discloses a measuring tool for rapidly inspecting a high-lock bolt. The measuring tool is thin and is stepped, the steps are used for marking the minimum size and the maximum size of the extending amount of the threads of the high-locking bolt, and whether the high-locking bolt is qualified or not can be quickly checked and judged.

Description

Measuring tool for rapidly testing high-locking bolt

Technical Field

The utility model belongs to the technical field of quality inspection, and particularly relates to a measuring tool for rapidly inspecting a high-lock bolt.

Background

The main bearing structure of the Y12F airplane body adopts a large number of high-locking bolts for connection, and the high-locking bolts with different specifications have strict inspection standards. When a checker checks the standard, the checker needs to look up the English edition standard and also needs to perform metric conversion on the English standard, which is time-consuming and easy to make mistakes.

The prior art state is: the high-locking bolt is a bolt which improves the fatigue strength of a joint by utilizing the combined action of interference fit and higher pretightening force caused by interference magnitude of the bolt and a nut. The high-locking bolt mainly comprises a threaded core rod and a threaded sleeve ring.

During installation, a bolt is inserted from one side of the hole, the lantern ring is screwed on the other side of the hole, when a certain screwing torque is reached, the lantern ring is broken from the groove part, as shown in figure 1, (a) a hexagonal conical head on a tool is inserted into a hexagonal groove of the core rod, (b) the tool is firmly propped against the lantern ring and is started until the lantern ring twisting device is twisted off, and (c) the high-locking fastener assembly is installed.

After the high-lock bolt is installed, whether the thread extension amount meets the technical requirements needs to be checked, and the traditional method adopts a caliper or a ruler to measure the reading and then compares the reading with the standard to further judge whether the reading is qualified.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, an object of the present invention is to provide a measuring tool for quickly inspecting a high-lock bolt, so as to quickly inspect and determine whether the high-lock bolt is installed properly.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme.

The measuring tool is in a sheet shape and is in a step shape, and the steps are used for marking the minimum size and the maximum size of the extending amount of the threads of the high-lock bolt.

The technical scheme of the utility model has the characteristics and further improvements that:

(1) and scales are arranged between the step marked with the minimum size and the step marked with the maximum size and used for reading the thread extending amount of the high-locking bolt.

(2) When in use, the stepped part marked with the minimum size on the measuring tool is clamped on the plane of the high lock nut.

(3) And after the thread extension of the high-locking bolt is read according to the measuring tool, the high-locking bolt can be adjusted to be lengthened by one step or shortened by one step.

(4) And hanging holes are formed in the corners of the measuring tool and are used for hanging the measuring tool on a part assembling type frame for mounting the high-lock bolt.

(5) A plurality of measuring tools for detecting high-lock bolts with different specifications are integrated in one accommodating groove and are fixed through bolt nuts.

The utility model can be suitable for the inspection of high-lock bolts with different diameters and specifications; the inspection accuracy can be improved, and the working efficiency is accelerated; an operator can quickly judge whether the installation meets the requirements, so that rework is avoided and the cost is reduced; the manufacturing cost is low, and the maintenance is convenient and simple. .

Drawings

FIG. 1 is a process of installing a high lock bolt; wherein, 1-a hexagonal groove in the bolt, 2-a lantern ring, 3-a high locking adapting groove, 4-a hexagonal conical head, 5-a mounted lantern ring, and 6-a lantern ring torque device;

FIG. 2 is a front view of a gauge provided by an embodiment of the present invention;

FIG. 3 is a schematic view of different gauges integrated together;

fig. 4 is a schematic view of the gauge in use.

Detailed Description

The utility model is further illustrated by the following figures and examples.

According to the measuring tool for rapidly detecting the high-lock bolt, which is provided by the embodiment of the utility model, as shown in fig. 2, the whole measuring tool adopts a simple and easily-processed sheet-like structure form, and can be easily placed in a narrow and closed space for detection.

The measuring tool is in a step shape and has minimum size and maximum size marks; whether the high-lock bolt is qualified or not can be judged rapidly through the maximum scale and the minimum scale on the measuring tool.

The measuring tool can be used for rapidly reading the numerical value of the thread extension of the high-lock bolt, so that the high-lock bolt can be timely adjusted to be lengthened by one step or shortened by one step.

As shown in FIG. 3, the gauge can have multiple specifications, and can be used in combination or separately; the measuring tool can be conveniently integrated with an assembly fixture, and is convenient for workers to perform self-checking after installation and operation.

As shown in fig. 4, the measuring tool is used by the following method: firstly, according to the specification of the high-locking bolt, the specification corresponding to the utility model is selected. Then, after the high-lock bolt is installed, the marked MIN part of the utility model is clamped on the plane of the high-lock nut. And finally, reading the numerical value of the thread extension of the high-locking bolt through the upper numerical scale.

When the measuring tool needs multiple specifications to be combined for use, the measuring tool can be fixed through the small holes in the measuring tool by using conventional bolts and nuts according to needs, and the measuring tool can be accommodated by matching with the accommodating grooves. Meanwhile, the steel wire rope can be fixed on the assembly type frame through the small hole in the measuring tool, and an operator can be guaranteed to take the steel wire rope at any time when the steel wire rope is used.

The measuring tool for rapidly detecting the high-lock bolt solves the problem that the high-lock bolt cannot be detected after being installed by a traditional measuring tool in a narrow space, can be used for a long time, and is easy to operate and high in efficiency.

Claims (1)

1. A measuring tool for rapidly detecting a high-lock bolt is characterized in that the measuring tool is in a sheet shape and is in a step shape, and the steps are used for marking the minimum size and the maximum size of the extending amount of the thread of the high-lock bolt;

scales are arranged between the step marked with the minimum size and the step marked with the maximum size and used for reading the thread extension amount of the high-locking bolt;

hanging holes are formed in the corners of the measuring tool and used for hanging the measuring tool on a part assembling type frame for mounting the high-lock bolt;

a plurality of measuring tools for detecting high-locking bolts with different specifications are integrated in one accommodating groove and are fixed through bolt nuts.

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